1. affinity -- ((immunology) the attraction between an antigen and an antibody)
2. affinity -- ((anthropology) kinship by marriage or adoption; not a blood relationship)
3. affinity, phylogenetic relation -- ((biology) state of relationship between organisms or groups of organisms resulting in resemblance in structure or structural parts; "in anatomical structure prehistoric man shows close affinity with modern humans")
4. affinity, kinship -- (a close connection marked by community of interests or similarity in nature or character; "found a natural affinity with the immigrants"; "felt a deep kinship with the other students"; "anthropology's kinship with the humanities")
5. affinity, chemical attraction -- (the force attracting atoms to each other and binding them together in a molecule; "basic dyes have an affinity for wool and silk")
6. affinity -- (inherent resemblance between persons or things)
7. affinity -- (a natural attraction or feeling of kinship; "an affinity for politics"; "the mysterious affinity between them"; "James's affinity with Sam")

1.

Whatever bears affinity to cunning is despicable.. - from Pride and Prejudice by Jane Austen

2.

Or any affinity to virtue in genera. - from The Republic by Plato

3.

Any affinity to wantonness and intemperanc. - from The Republic by Plato

4.

In the same early morning, I discovered a singular affinity between seeds and corduroys. - from Great Expectations by Charles Dickens

5.

And great affinity and that in wholesome wisdo. - from The Complete Works of William Shakespeare by William Shakespeare

6.

to intimate that between slops, and broth will compounded, there existed no affinity or connection whatsoever. - from Oliver Twist by Charles Dickens

7.

Was there some subtle affinity between the chemical atoms that shaped themselves into form and colour on the canvas and the soul that was within hi. - from The Picture of Dorian Gray by Oscar Wilde

8.

Now Jehoshaphat had riches and honour in abundance, and joined affinity with Ahab. - from The King James Bible

9.

But let me ask you another question Has excess of pleasure any affinity to temperanc. - from The Republic by Plato